Self-contained miniature timer

Details Self-contained miniature timer Self-contained miniature timer

1976-06-11

1978-02-28

Jackmon, Edith S.

Registers

Coded record sensors

Particular sensor structure

58 395, 58 56, 58 74, 58145K, 235 92PE, 248115, 324186, G04B 4700, G04F 704, A47F 700

Patent

active

040758290

ABSTRACT:
The specification discloses a timer including a housing having a display aperture in the front surface thereof. A light emitting diode display is mounted within the display aperture for displaying multiple digits. A U-shaped bracket pivotally connects to the housing and has a base surface which is adapted to be attached to a telephone set for ease of viewing by the telephone user. Timing circuitry within the housing generates periodic timing signals and drives the display to display time intervals to the telephone user. A switch is positioned on the housing for actuation by the telephone user to start and stop operation of the circuitry.

REFERENCES:
patent: 1113538 (1914-10-01), Braucher et al.
patent: 1136520 (1915-04-01), Fukami
patent: 1371079 (1921-03-01), Drosin
patent: 2169183 (1939-08-01), Fish
patent: 2609045 (1952-09-01), Kaiser
patent: 2633440 (1953-03-01), Scholl
patent: 3410513 (1968-11-01), Wolf
patent: 3517636 (1970-06-01), Morales
patent: 3686880 (1972-08-01), Samejima
patent: 3756694 (1973-09-01), Soree
patent: 3765163 (1973-10-01), Levin et al.
patent: 3789600 (1974-02-01), Champan
patent: 3824782 (1974-07-01), Iinuma
patent: 3899872 (1975-08-01), Flumm et al.
patent: 3950935 (1976-04-01), Naito
patent: 3965669 (1976-06-01), Larson et al.
patent: 3998045 (1976-12-01), Lester

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